Apple 5500/225 Manuale Utente

 

 Adjustments

Video - 29

 

6

 

  Verify that the 

display resolution is set 

to 640 x 480.
Run Display Service 

Utility to display the 

Gray Bars test pattern.

7 Using a fine-tip plastic 

adjustment tool, set the 

red bias (VR304) and 

the green bias (VR305) 

controls to their 

minimum 

(counterclockwise) 

positions.

VR305 VR304

CRT Video Board

Run 

Display Service

Utility

Gray Bars

Test Pattern